From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
From Mr. Royce defining the light, normal, and overload conditions for the 20 HP chassis road springs.
| Identifier | ExFiles\Box 49\3\ Scan001 | |
| Date | 29th March 1919 | |
| To DA.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} c. to EY. c. to EH. X4361 ORIGINAL E5/G29.3.19. 29th. Mar. 1919. RE 20 H.P. CHASSIS ROAD SPRINGS. X.3529 X.3481 Would you kindly note that in dealing with the general arrangement of the 20 H.P. chassis, Mr. Royce has decided that the frame should be considered level when the car is carrying its normal load. The following table gives an idea of what the normal load is considered to be;- Load. Two-seater. Four-seater. Light. Driver only. Driver only. Normal. Driver plus passenger and bag. Driver plus two passengers and bag. Overload. Driver, plus two or Driver, plus three or more more passengers and passengers and bag. bag. Would you therefore please instruct the springing of the car to be arranged in this way. E.{Mr Elliott - Chief Engineer} | ||